Solve the quadratic equation.5x2 = 65
A. 14
B. ±13
C. ±
D. No real solutions
Answer: C
Mathematics
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Identify the number as prime or composite.161
A. Prime B. Composite
Mathematics
Find the sum of the arithmetic sequence.-3 + 1 + 5 + 9 + 13 + ... + (4n - 7)
A. n(4n + 7) B. n(2n + 5) C. n(2n - 5) D. n(4n - 7)
Mathematics
Solve the problem.Suppose that P(x) represents the percentage of income spent on food in year x and I(x) represents income in year x. Determine a function F that represents total food expenditures in year x.
A. F(x) = (P + I)(x)
B. F(x) = (P ? I)(x)
C. F(x) = (I - P)(x)
D. F(x) = (
)(x)
Mathematics
Find the exact value of the expression. Do not use a calculator.tan 150° cos 210°
A. 
B. 
C. 
D. - 
Mathematics